National Museum of Nuclear Science & History
J. O'Conner worked for the Midwest Piping and Supply Company.
Stanislaw Ulam (1909-1984) was a Polish-American mathematician. Ulam was born in 1909 in Lvov, Austria-Hungary (present-day Ukraine).
Jas Purcell worked for the Roane-Anderson Company.
Herbert D. Swasey served in the 603rd Air Engineering Squadron.